Structure and Function of the Heart

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Across
  1. 5. The heart has ____ chambers
  2. 6. lower chamber of the heart that pumps blood into the lungs or body
  3. 7. The heart is a _____ that pumps blood throughout the body
  4. 8. The ___ circulation loop moves blood from the heart to the body
  5. 10. In blood pressure, the ____ number is the force of blood against artery walls when the heart contracts and pumps blood
  6. 12. upper chamber of the heart that receives blood from the body or lungs
  7. 13. you can tell how fast your heart is beating by counting your ___ in your wrist or neck
  8. 14. the force of circulating blood against the walls of your blood vessels
Down
  1. 1. the main artery that supplies blood to the body
  2. 2. this organ (not the heart) rules the emotions
  3. 3. vessels that move blood away from the heart
  4. 4. vessels that return blood to the heart
  5. 6. prevents blood from flowing when moving from one chamber to another
  6. 9. these vessels supply blood to the heart
  7. 11. The ___ circulation loop moves blood from the heart to the lungs